One machine, worth slightly more than a small country's entire budget, allegedly ended up where it should never be. The US government claims that one of Dutch company ASML's most advanced chipmaking tools may have reached China - in violation of export bans that have been in place for years. The company flatly denies it: no such machine exists in China, nor has one ever been there.

The dispute centres on so-called EUV lithography - systems that are currently the only ones in the world capable of printing the finest circuits needed for the most advanced semiconductors. Without them, there are no top-tier chips, no most powerful artificial intelligence, none of the race everyone is running. That is why Washington banned the sale of this technology to China from Trump's first term. Whoever controls the machine controls the future - and the US does not want that machine serving Chinese interests.

US Commerce Secretary Howard Lutnick told ASML leadership that Washington holds evidence of components and shipping equipment linked to EUV systems that made their way toward China. Only those documents have not been shown - neither publicly nor to ASML itself. An accusation without attached proof, directed at Europe's most valuable public company, with a market capitalisation of around 700 billion dollars. A serious charge, casually delivered.

And the stakes here don't simplify easily. ASML expects around 20 percent of its 2026 revenues to come from legally permitted sales of older equipment in China. Putting that on the line over one unsubstantiated claim would be commercial recklessness of the first order - something no shareholder in Eindhoven would sign off on. When an export ban becomes a diplomatic weapon, the question is not only whether the machine is in China, but who the story serves if it turns out that it is.